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Channelized STM1 to E1 PIC

Image g003053.gif

Software release
  • JUNOS 4.4 and later
Description
  • Four E3 ports
  • Power requirement: 0.32 A/48 V @ 15.3 W
  • 63 E1 channels
Hardware features
  • Each E1 channel supports a single High-level Data Link Control (HDLC) framer that can be configured for speeds from DS0 (64 Kbps) through full E1 (2 Mbps) in 64-Kbps increments
  • Onboard DSU functionality for E1 and fractional E1 connectivity
  • Integrated support for G.703 and unframed mode and G.704 framed mode with CRC; this feature is user-configurable
  • Configurable clock source: Internal or loop
  • Per-port loop timing
  • Rate limiting on input and output
  • NxE1 service with Multilink Point-to-Point Protocol (MLPPP, RFC 1990) delivered by the Link Services and Multilink Services PICs
Software features
  • SDH mapping:
    • Tributary Unit Group 3 (TUG-3)
  • E1 support:
    • Full instrumentation per E1 channel
    • Integrated support for G.703 unframed mode and G.704 framed mode
    • 4-bit CRC for G.704 framed mode
    • HDB3 coding
    • Local E1 line loopback and remote line loopback
    • Per-channel BERT testing
  • Encapsulations:
    • Cisco High-level Data Link Control (HDLC)
    • Frame Relay
    • Multiprotocol Label Switching (MPLS) circuit cross-connect (CCC)
    • MPLS translational cross-connect (TCC)
    • Point-to-Point Protocol (PPP)
Cables and connectors
  • Single-mode fiber
  • Duplex SC/PC connector (RX and TX)
LEDs One tricolor per port:
  • Off—Not enabled
  • Green—Online with no alarms or failures
  • Amber—Online with alarms for remote failures
  • Red—Active with a local alarm; router has detected a failure
Alarms, errors, and events
  • Alarm Indication Signal (AIS)
  • Bit Error Rate Signal Degrade (BERR-SD), Bit Error Rate Signal Fail (BERR-SF)
  • Bit Error Rate Testing (BERT) per E1 channel
  • Bit Interleaved Parity Errors B1, B2, B3 (CV-S, CV-L, CV-P)
  • Loss of Frame (LoF), Loss of Pointer (LoP-P), Loss of Signal (LoS)
  • Payload Mismatch (PLM-P), Payload Unequipped (UNEQ-P)
  • Remote Defect Indication (RDI-L, RDI-P)
  • Errored Seconds (ES-S, ES-L, ES-P), Severely Errored Framing (SEF), Severely Errored Framing Seconds (SEFS-S), Severely Errored Seconds (SES-S, SES-L, SES-P), Unavailable Seconds (UAS-L, UAS-P)
  • Yellow alarm bit (X-bit) disagreements
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